A common recommendation from experts to help protect against coronavirus is to wash your hands often, but why? It turns out that each time you do it is an effective two-pronged attack.
As Kate the Chemist explains, the virus has a weak outer membrane. By using the proper handwashing technique, you’re actually breaking through that membrane and ripping the virus apart.
Soap is an important part of the equation because of its two sides: the hydrophobic side (which grabs onto the virus), and the hydrophilic side (which grabs onto the water). Washing your hands with soap for at least 20 seconds allows the virus to be rinsed away.